When Oakland High School in California moved into a new building, the students and teacher

When Oakland High School in California moved into a new building, the students and teachers noticed a strong smell. Then almost half of the students began to have a headache and a cough. Experts (专家) came to find the cause of the sickness. Finally, they discovered that the air in the building was not safe to breathe. They were surprised to find out that the desks and chairs in the school library caused the trouble. These desks and chairs were made of particleboards(合成板). This kind of board is cheap. It is made of very small pieces of wood held together with a chemical (化学物质). This is just one example of a modern problem that is most common in cities—indoor air pollution(污染).
People have worried about air pollution for many years, and the government has spent lots of money trying to clean up the air of big cities. But now we found that we are still breathing unhealthy air. A study shows: Indoor air pollution is almost two to five time(倍) worse than outside pollution. So remember to open the windows and don’t stay too long in modern buildings with windows closed.
【小题1】Many students and teachers after they moved into the new building.
A were very happy and excited B. didn’t feel well C. felt tired because of hard work
【小题2】The experts came to Oakland High School for .
A staying with the sick students and teachers
B. taking away the desks and chairs
C. finding the cause of the illness
【小题3】 Which of the following is Not true according to the passage?
A. The indoor air pollution is common in cities.
B. We needn’t worry about the outside pollution.
C. The air in this school library was not safe to breathe.
【小题4】A study shows that indoor air pollution is .
A even worse than the outside pollution B. not so bad as outside pollution
C. the only problem to worry about
【小题5】 What’s the main idea of the passage?
A Never move into a new building B. We shouldn’t buy cheap desks and chairs
C. The indoor air pollution is a big and common problem. B

(答案→)B 解析：【主旨大意】本文通过讲述加利福尼亚的一所学校的教室空气污染，从而引申到在我们的生活中的室内污染的严重性，及我们如何减少室内污染的方法。【小题1】细节理解题。从文章中的第一段“Then almost half of the students began to have a headache and a cough.”可知答案为B。【小题1】细节理解题。根据句子“Experts (专家) came to find the cause of the sickness.”可知答案。【小题1】细节理解题。根据选项叙述，我们也应该关注室外污染，故答案为B。【小题1】细节理解题。根据第二段中的“A study shows: Indoor air pollution is almost two to five time(倍) worse than outside pollution.”可知答案为A。【小题1】主旨大意题。根据文章大意可知，室内污染已经是严重和普遍的问题。

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